21018776

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{55901}}^1$

素因数の和:55954

約数の個数: 16

約数和(自身を含む): 40249440

約数和(自身を除く): 19230664

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 55901, 111802, 223604, 447208, 2627347, 5254694, 10509388, 21018776]

約数ペア:

[(1, 21018776), (2, 10509388), (4, 5254694), (8, 2627347), (47, 447208), (94, 223604), (188, 111802), (376, 55901)]